<template>
    <el-main class="image-main" v-loading="loading">
        <div class="top p-3">

            <el-row :gutter="10">
                <el-col :span="6" :offset="0" v-for="(item,index) in list" :key="index">
                    <el-card shadow="hover" class="relative mb-3" :body-style="{ 'padding':0 }" :class="{ 'border-blue-500':item.checked }">
                        <el-image :src="item.url" fit="cover" class="h-[150px]" style="width: 100%;" :preview-src-list="[item.url]" :initial-index="0"></el-image>
                        <div class="image-title">{{ item.name }}</div>
                        <div class="flex items-center justify-center p-2">

                            <el-checkbox v-if="openChoose" v-model="item.checked" @change="handleChooseChange(item)" />

                            <el-button type="primary" size="small" text @click="handleEdit(item)">重命名</el-button>

                            <el-popconfirm title="是否删除该图片？" confirmButtonText="确认" cancelButtonText="取消" @confirm="handleDelete(item.id)">
                                <template #reference>
                                    <el-button class="!m-0" type="primary" size="small" text>删除</el-button>
                                </template>
                            </el-popconfirm>
                        </div>
                    </el-card>
                </el-col>
            </el-row>

        </div>
        <div class="bottom">
            <el-pagination background layout="prev,pager, next" :total="total" :current-page="currentPage" :page-size="limit" @current-change="getData" />
        </div>
    </el-main>

    <el-drawer v-model="drawer" title="上传图片">
        <UploadFile :data="{ image_class_id }" @success="handleUploadSuccess" />
    </el-drawer>

</template>
<script setup>
import { number } from "echarts";
import { ref, computed } from "vue"
import {
    getImageList,
    updateImage,
    deleteImage
} from "~/api/image.js"
import {
    showPrompt,
    toast
} from "~/composables/util.js"
import UploadFile from "./UploadFile.vue";

// 上传图片
const drawer = ref(false)
const openUploadFile = () => drawer.value = true

// 分页
const currentPage = ref(1)
const total = ref(0)
const limit = ref(10)
const list = ref([])
const loading = ref(false)
const image_class_id = ref(0)

// 获取数据
function getData (p = null) {
    if (typeof p == "number") {
        currentPage.value = p
    }

    loading.value = true
    getImageList(image_class_id.value, currentPage.value)
        .then(res => {
            total.value = res.totalCount
            list.value = res.list.map(o => {
                o.checked = false
                return o
            })
        })
        .finally(() => {
            loading.value = false
        })
}

// 根据分类ID重新加载图片列表
const loadData = (id) => {
    currentPage.value = 1
    image_class_id.value = id
    getData()
}

// 重命名
const handleEdit = (item) => {
    showPrompt("重命名", item.name)
        .then(({ value }) => {

            loading.value = true
            updateImage(item.id, value)
                .then(res => {
                    toast("修改成功")
                    getData()
                })
                .finally(() => {
                    loading.value = false
                })

        })
}

// 删除图片
const handleDelete = (id) => {
    loading.value = true
    deleteImage([id]).then(res => {
        toast("删除成功")
        getData()
    })
        .finally(() => {
            loading.value = false
        })
}

// 上传成功
const handleUploadSuccess = () => getData(1)

const props = defineProps({
    openChoose: {
        type: Boolean,
        default: false
    },
    limit: {
        type: Number,
        default: 1
    }
})

// 选中的图片
const emit = defineEmits(["choose"])
const checkedImage = computed(() => list.value.filter(o => o.checked))
const handleChooseChange = (item) => {
    if (item.checked && checkedImage.value.length > props.limit) {
        item.checked = false
        return toast(`最多只能选中1张`, "error")
    }
    emit("choose", checkedImage.value)
}


defineExpose({
    loadData,
    openUploadFile
})


</script>
<style>
.image-main {
    position: relative;
}
.image-main .top {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 50px;
    overflow-y: auto;
}
.image-main .bottom {
    position: absolute;
    bottom: 0;
    height: 50px;
    left: 0;
    right: 0;
    @apply flex items-center justify-center;
}
.image-title {
    position: absolute;
    top: 122px;
    left: -1px;
    right: -1px;
    @apply text-sm truncate text-gray-100 bg-opacity-50 bg-gray-800 px-2 py-1;
}
</style>